He was naked when he awoke, and so was Fuka-Eri. Completely and totally naked. Her breasts were perfect hemispheres. Her nipples were not overly large, and they were soft, still quietly groping for the maturity that was to come. Her breasts themselves were large, however, and fully ripe. They seemed to be virtually uninfluenced by the force of gravity, the nipples turned beautifully upward, like a vine's new tendrils seeking sunlight. The next thing that Tengo became aware of was that Fuka-Eri had no pubic hair.

[…]

A freshly made ear and a freshly made vagina look very much alike, Tengo thought. Both appeared to be turned outward, trying to listen closely to something – something like a distant bell.

I was sleeping. Tengo realized. He had fallen asleep still erect. And even now he was firmly erect. Had the erection continued the whole time he was sleeping? Or was this a new erection, following the relaxation of the first (like Prime Minister So-and-So's Second Cabinet)? How long was I sleeping? But what's the difference? I'm still erect now, and it shows no sign of subsiding. Neither Sonny and Cher nor three-digit multiplication nor complex mathematics had managed to bring it down.

[…]

Having brought Tengo deep inside her, Fuka-Eri remained utterly still, as did Tengo, feeling himself deep inside of her. He remained incapable of moving his body, and she, eyes closed, perched on top of him like a lightning rod, stopped moving. He could see that her mouth was slightly open and her lips were making delicate, rippling movements as if groping in space to form some kind of words.

[…]

[Tengo then has a fantasy about being ten years old and back at elementary school, before....]

In the next second, Tengo realized that he was ejaculating. The violent spasm went on for several seconds, releasing a great deal of semen in a powerful surge. Where is my semen going? Tengo's garbled mind wondered. Ejaculating like this after school in a grade school classroom was not an appropriate thing to do. He could be in trouble if someone saw him. But this was not a grade school classroom anymore. Now he realized that he was inside Fuka-Eri, ejaculating toward her uterus. This was not something that he wanted to be doing. But he could not stop himself. Everything was happening beyond his control.